patch 8.1.0747: map() with a bad expression doesn't give an error commit https://github.com/vim/vim/commit/ce9d50df07402cb8e196537a9c4505845adecabc Author: Bram Moolenaar <Bram@vim.org> Date: Mon Jan 14 22:22:29 2019 +0100 patch 8.1.0747: map() with a bad expression doesn't give an error Problem: map() with a bad expression doesn't give an error. (Ingo Karkat) Solution: Check for giving an error message. (closes https://github.com/vim/vim/issues/3800)

" Vim support file to switch off detection of file types
"
" Maintainer:	Bram Moolenaar <Bram@vim.org>
" Last change:	2001 Jun 11

if exists("did_load_filetypes")
  unlet did_load_filetypes
endif

" Remove all autocommands in the filetypedetect group
silent! au! filetypedetect *